Company lists · Data refreshed September 2026

Top 25 Foreign investment law firms based in Türkiye

Name: Foreign investment law firms based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,663 companies tracked

RevenueBase identified 1,663 foreign investment law firms headquartered in Türkiye as of September 2026 and tracks 10,312 professional contacts across them, including 1,916 with verified work emails. Istanbul is the largest hub.

This list covers foreign investment law firms headquartered in Türkiye, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

1,663Companies

10,312Contacts tracked

1,916Verified emails

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The 25 largest foreign investment law firms based in Türkiye

Ranked by team size

Top 25 of 1,663 foreign investment law firms based in Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to foreign investment law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Esin Attorney Partnership	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	197 contacts →
	Indirect evidence “Esin Attorney Partnership was established in 1997.” Source: RevenueBase Database · checked Sep 28, 2026
2	Paksoy	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	138 contacts →
	Indirect evidence “Outstanding track record of 29 years • Independent, established legal brand • Transactional corporate powerhouse • Excellence in dispute resolution work • Multidisciplinary…” Source: RevenueBase Database · checked Sep 28, 2026
3	Aksu Çalışkan Beygo Attorney Partnership	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	137 contacts →
	Partial evidence “ASC Law (Aksu Çalışkan Beygo Attorney Partnership) has been serving the domestic and international clients since 2001 at its office located in Levent, Istanbul, the financial…” Source: RevenueBase Database · checked Sep 28, 2026
4	Balcıoğlu Selçuk Eymirlioğlu Ardıyok Keki Avukatlık Ortaklığı	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	133 contacts →
	Partial evidence “Balcıoğlu Selçuk Eymirlioğlu Ardıyok Keki is an Istanbul-based full-service law firm led by experienced professionals since 2007.” Source: RevenueBase Database · checked Sep 28, 2026
5	GSI Goksu Safi Isik Attorney Partnership	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	127 contacts →
	Indirect evidence “Göksu Safi Işık Attorney Partnership (GSI) offers services to its clientele in a wide range of legal areas.” Source: RevenueBase Database · checked Sep 28, 2026
6	GÜN Partners	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	121 contacts →
	Partial evidence “We are one of the oldest and largest law firms in Turkey and are considered internationally to be among the top-tier of legal services providers.” Source: RevenueBase Database · checked Sep 28, 2026
7	Hergüner Bilgen Üçer	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	114 contacts →
	Partial evidence “Founded over three decades ago, our firm is one of Istanbul's most venerable law offices, and among the few independent, corporate-structured, full-service, Turkish law firms with…” Source: RevenueBase Database · checked Sep 28, 2026
8	Moroğlu Arseven	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	99 contacts →
	Partial evidence “Moroğlu Arseven is a full-service law firm with broadly demonstrated expertise and experience in all aspects of business law.” Source: RevenueBase Database · checked Sep 28, 2026
9	Egemenoğlu	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	97 contacts →
	Partial evidence “Egemenoglu Law Firm: A Legacy of Excellence Founded in 1968, Egemenoglu is one of Turkey’s largest and most respected full-service law firms, advising market-leading clients…” Source: RevenueBase Database · checked Sep 28, 2026
10	Kolcuoglu Demirkan Kocakli Attorneys At LAW	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	91 contacts →
	Partial evidence “Kolcuoğlu Demirkan Koçaklı is a full-service law firm offering a wide range of legal services to international companies, institutions and individuals in various sectors.” Source: RevenueBase Database · checked Sep 28, 2026
11	Özay LAW Firm	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	81 contacts →
	Partial evidence “Ozay Law Firm provides legal services of high quality which meet with the requirements of business world.” Source: RevenueBase Database · checked Sep 28, 2026
12	NSN LAW Firm	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	11-50	74 contacts →
	Partial evidence “We are a well-established eminent law firm offering a full and comprehensive range of legal services to our clients at utmost quality, with the core strength on Commercial…” Source: RevenueBase Database · checked Sep 28, 2026
13	Bener LAW Office	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	68 contacts →
	Partial evidence “Bener Law Office is a full service Turkish law firm with a strong international practice.” Source: RevenueBase Database · checked Sep 28, 2026
14	Erdem & Erdem LAW Office	Partial evidence	Şişli, TürkiyeHQ checked Sep 28, 2026	51-200	63 contacts →
	Partial evidence “Erdem & Erdem is an international law firm dedicated to providing practical business solutions to a diverse range of clients.” Source: RevenueBase Database · checked Sep 28, 2026
15	Kılınç LAW & Consulting	Partial evidence	Sariyer, TürkiyeHQ checked Sep 28, 2026	51-200	62 contacts →
	Partial evidence “Kılınç Law & Consulting offers legal service in domestic and international areas.” Source: RevenueBase Database · checked Sep 28, 2026
16	Tunca Avukatlık Ortaklığı	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	11-50	57 contacts →
	Indirect evidence “Established by Sidar Tunca in 2006, Tunca Attorney Partnership provides service with more than 50 employees to the clients operating in various national and international sectors.” Source: RevenueBase Database · checked Sep 28, 2026
17	Sayin LAW & Consulting	Partial evidence	Sariyer, TürkiyeHQ checked Sep 28, 2026	51-200	57 contacts →
	Partial evidence “Founded by Murat Sayın, Sayın Law & Consulting is an İstanbul based (incorporated) full-service law firm offering high quality and solution oriented legal service in a…” Source: RevenueBase Database · checked Sep 28, 2026
18	R&s LAW & Consulting	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Av.” Source: RevenueBase Database · checked Sep 28, 2026
19	Çakmak Attorney Partnership	Partial evidence	Ankara/istanbul, TürkiyeHQ checked Sep 28, 2026	11-50	53 contacts →
	Partial evidence “Established in 1993, Çakmak is a top-tier corporate law firm with coverage throughout Türkiye.” Source: RevenueBase Database · checked Sep 28, 2026
20	Akıncı LAW Office	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	11-50	51 contacts →
	Partial evidence “Akinci Law Office is an international law firm, based in Istanbul, committed to providing high-quality legal service both with international and domestic matters.” Source: RevenueBase Database · checked Sep 28, 2026
21	Elmadağ Attorneys & Counselors	Partial evidence	Esentepe, TürkiyeHQ checked Sep 28, 2026	51-200	49 contacts →
	Partial evidence “Elmadağ Law & Consultancy has been providing comprehensive legal services at both national and international levels since its establishment in 1995.” Source: RevenueBase Database · checked Sep 28, 2026
22	Actecon	Partial evidence	Besiktas, TürkiyeHQ checked Sep 28, 2026	11-50	48 contacts →
	Partial evidence “ACTECON advises clients on Turkish competition law, regulation and international trade remedies.” Source: RevenueBase Database · checked Sep 28, 2026
23	Pekin Bayar Mizrahi	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	47 contacts →
	Partial evidence “Pekin Bayar Mizrahi is a leading top-tier law firm located in Istanbul, Turkey.” Source: RevenueBase Database · checked Sep 28, 2026
24	Pekin & Pekin	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	47 contacts →
	Partial evidence “A Legacy of Excellence, Strengthened by Innovation Founded in 1971 in Istanbul, Pekin & Pekin is a premier full-service law firm recognized for its pioneering legal expertise and…” Source: RevenueBase Database · checked Sep 28, 2026
25	Arıtürk & Partners	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	201-500	45 contacts →
	Partial evidence “Arıtürk & Partners Law Office has been established by Atty.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: foreign investment law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names foreign investment law firms.
Partial evidence: Its own public description names part of foreign investment law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name foreign investment law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,663 foreign investment law firms based in Türkiye

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Foreign investment law firms based in Türkiye at a glance

As of Sep 28, 2026

18.6%Verified-email coverage

6.2Average contacts per company

1-10Median size (employees)

35.5%Largest-city concentration · Istanbul

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,180

11-50

422

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 1,663 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among foreign investment law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Türkiye whose own description of what they do matches “foreign investment law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names foreign investment law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among foreign investment law firms, and records with no verified work email. Companies headquartered outside Türkiye are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,916 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Foreign investment law firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names foreign investment law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many foreign investment law firms are there based in Türkiye?

RevenueBase identified 1,663 foreign investment law firms headquartered in Türkiye as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Esin Attorney Partnership, headquartered in Istanbul, tops this list with the largest team on record.

Which city has the most foreign investment law firms?

Istanbul leads with 591 headquartered companies, followed by Sisli (132) and Cankaya (94).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,916 verified decision-maker contacts tracked across these 1,663 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.